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https://github.com/holub/mame
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flower.cpp: rewrote custom sound device (nw)
This commit is contained in:
angelosa
parent
6364a6f42a
commit
c4cd603431
@ -4524,6 +4524,7 @@ files {
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MAME_DIR .. "src/mame/drivers/fireball.cpp",
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MAME_DIR .. "src/mame/drivers/flipjack.cpp",
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MAME_DIR .. "src/mame/drivers/flower.cpp",
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MAME_DIR .. "src/mame/audio/flower.cpp",
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MAME_DIR .. "src/mame/drivers/fortecar.cpp",
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MAME_DIR .. "src/mame/drivers/fresh.cpp",
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MAME_DIR .. "src/mame/drivers/freekick.cpp",
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281
src/mame/audio/flower.cpp
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281
src/mame/audio/flower.cpp
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@ -0,0 +1,281 @@
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// license:BSD-3-Clause
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// copyright-holders:Angelo Salese
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/***************************************************************************
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Flower custom sound chip
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Similar to Wiping and Namco 15xx designs
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TODO:
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- several unknown registers (effects and unknown register tied to repeat port);
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- repeat certainly needs a cutoff, which is unknown about how it works;
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***************************************************************************/
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#include "emu.h"
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#include "flower.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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// device type definition
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DEFINE_DEVICE_TYPE(FLOWER_CUSTOM, flower_sound_device, "flower", "Flower Custom Audio")
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// TODO: AM_SELECT unsupported by DEVICE_ADDRESS_MAP, so we need a trampoline here
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static ADDRESS_MAP_START( regs_map, AS_IO, 8, flower_sound_device )
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AM_RANGE(0x00, 0x03) AM_SELECT(0x38) AM_WRITE(frequency_w)
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AM_RANGE(0x04, 0x04) AM_SELECT(0x38) AM_WRITE(repeat_w)
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AM_RANGE(0x05, 0x05) AM_SELECT(0x38) AM_WRITE(unk_w)
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AM_RANGE(0x07, 0x07) AM_SELECT(0x38) AM_WRITE(volume_w)
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AM_RANGE(0x40, 0x45) AM_SELECT(0x38) AM_WRITE(start_address_w)
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AM_RANGE(0x47, 0x47) AM_SELECT(0x38) AM_WRITE(sample_trigger_w)
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ADDRESS_MAP_END
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// flower_sound_device - constructor
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//-------------------------------------------------
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flower_sound_device::flower_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, FLOWER_CUSTOM, tag, owner, clock),
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device_sound_interface(mconfig, *this),
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device_memory_interface(mconfig, *this),
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m_io_space_config("io", ENDIANNESS_LITTLE, 8, 7, 0, *ADDRESS_MAP_NAME(regs_map)),
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m_stream(nullptr),
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m_mixer_table(nullptr),
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m_mixer_lookup(nullptr),
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m_mixer_buffer(nullptr),
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m_last_channel(nullptr)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void flower_sound_device::device_start()
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{
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int i;
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m_iospace = &space(AS_IO);
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// TODO: clock
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m_stream = machine().sound().stream_alloc(*this, 0, 1, samplerate);
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m_mixer_buffer = make_unique_clear<short[]>(samplerate);
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make_mixer_table(MAX_VOICES, defgain);
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m_last_channel = m_channel_list + MAX_VOICES;
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m_sample_rom = machine().root_device().memregion("samples")->base();
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m_volume_rom = machine().root_device().memregion("soundvol")->base();
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for (i = 0; i < MAX_VOICES; i++)
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{
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save_item(NAME(m_channel_list[i].start_address), i);
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save_item(NAME(m_channel_list[i].position), i);
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save_item(NAME(m_channel_list[i].frequency), i);
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save_item(NAME(m_channel_list[i].volume), i);
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save_item(NAME(m_channel_list[i].volume_bank), i);
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save_item(NAME(m_channel_list[i].effect), i);
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save_item(NAME(m_channel_list[i].enable), i);
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save_item(NAME(m_channel_list[i].repeat), i);
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// assign a channel number (debugger aid)
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m_channel_list[i].channel_number = i;
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}
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}
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/* build a table to divide by the number of voices; gain is specified as gain*16 */
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void flower_sound_device::make_mixer_table(int voices, int gain)
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{
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int count = voices * 128;
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int i;
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/* allocate memory */
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m_mixer_table = make_unique_clear<int16_t[]>(256 * voices);
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/* find the middle of the table */
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m_mixer_lookup = m_mixer_table.get() + (128 * voices);
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/* fill in the table - 16 bit case */
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for (i = 0; i < count; i++)
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{
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int val = i * gain * 16 / voices;
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if (val > 32767) val = 32767;
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m_mixer_lookup[ i] = val;
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m_mixer_lookup[-i] = -val;
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}
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void flower_sound_device::device_reset()
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{
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for (fl_sound_channel *voice = m_channel_list; voice < m_last_channel; voice++)
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{
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voice->start_address = 0;
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voice->position = 0;
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voice->volume = 0;
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voice->enable = false;
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voice->repeat = false;
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}
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}
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void flower_sound_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
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{
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stream_sample_t *buffer = outputs[0];
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short *mix;
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uint8_t raw_sample;
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memset(m_mixer_buffer.get(), 0, samples * sizeof(short));
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for (fl_sound_channel *voice = m_channel_list; voice < m_last_channel; voice++)
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{
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int ch_volume = voice->volume;
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int ch_frequency = voice->frequency;
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if(voice->enable == false)
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continue;
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mix = m_mixer_buffer.get();
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for(int i=0;i<samples;i++)
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{
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if(voice->repeat == true)
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{
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raw_sample = m_sample_rom[((voice->start_address >> 7) & 0x7e00) | ((voice->position >> 7) & 0x1ff)];
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// guess: cut off after a number of repetitions
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if((voice->position >> 7) & 0x20000)
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{
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voice->enable = false;
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break;
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}
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}
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else
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{
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raw_sample = m_sample_rom[((voice->start_address + voice->position) >> 7) & 0x7fff];
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if(raw_sample == 0xff)
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{
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voice->enable = false;
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break;
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}
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}
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ch_volume |= voice->volume_bank;
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*mix++ += m_volume_rom[(ch_volume << 8 | raw_sample) & 0x3fff] - 0x80;
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voice->position += ch_frequency;
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}
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}
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/* mix it down */
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mix = m_mixer_buffer.get();
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for (int i = 0; i < samples; i++)
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*buffer++ = m_mixer_lookup[*mix++];
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}
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//-------------------------------------------------
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// memory_space_config - return a description of
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// any address spaces owned by this device
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//-------------------------------------------------
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device_memory_interface::space_config_vector flower_sound_device::memory_space_config() const
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{
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return space_config_vector {
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std::make_pair(AS_IO, &m_io_space_config)
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};
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}
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//**************************************************************************
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// READ/WRITE HANDLERS
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//**************************************************************************
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WRITE8_MEMBER( flower_sound_device::lower_write )
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{
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m_stream->update();
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m_iospace->write_byte(offset,data);
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}
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WRITE8_MEMBER( flower_sound_device::upper_write )
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{
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m_stream->update();
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m_iospace->write_byte(offset|0x40,data);
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}
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WRITE8_MEMBER( flower_sound_device::frequency_w )
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{
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uint8_t ch = (offset >> 3) & 0x7;
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fl_sound_channel *voice;
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voice = &m_channel_list[ch];
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voice->raw_frequency[offset & 3] = data & 0xf;
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voice->frequency = voice->raw_frequency[2] << 12;
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voice->frequency|= voice->raw_frequency[3] << 8;
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voice->frequency|= voice->raw_frequency[0] << 4;
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voice->frequency|= voice->raw_frequency[1] << 0;
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}
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WRITE8_MEMBER( flower_sound_device::repeat_w )
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{
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uint8_t ch = (offset >> 3) & 0x7;
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fl_sound_channel *voice;
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voice = &m_channel_list[ch];
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voice->repeat = BIT(data,4);
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}
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WRITE8_MEMBER( flower_sound_device::unk_w )
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{
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// same as above?
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}
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WRITE8_MEMBER( flower_sound_device::volume_w )
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{
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uint8_t ch = (offset >> 3) & 0x7;
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fl_sound_channel *voice;
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voice = &m_channel_list[ch];
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voice->volume = data >> 4;
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}
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WRITE8_MEMBER( flower_sound_device::start_address_w )
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{
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uint8_t ch = (offset >> 3) & 0x7;
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fl_sound_channel *voice;
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voice = &m_channel_list[ch];
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voice->start_nibbles[offset & 7] = data & 0xf;
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if(offset == 4)
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voice->effect = data >> 4;
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}
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WRITE8_MEMBER( flower_sound_device::sample_trigger_w )
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{
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uint8_t ch = (offset >> 3) & 0x7;
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fl_sound_channel *voice;
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voice = &m_channel_list[ch];
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voice->enable = true;
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voice->volume_bank = (data & 3) << 4;
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voice->start_address = 0;
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voice->position = 0;
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for(int i=5;i>=0;i--)
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{
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voice->start_address = (voice->start_address << 4) | voice->start_nibbles[i];
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}
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}
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106
src/mame/audio/flower.h
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106
src/mame/audio/flower.h
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@ -0,0 +1,106 @@
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// license:BSD-3-Clause
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// copyright-holders:Angelo Salese
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/***************************************************************************
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***************************************************************************/
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#ifndef MAME_AUDIO_FLOWER_H
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#define MAME_AUDIO_FLOWER_H
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#pragma once
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//**************************************************************************
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// INTERFACE CONFIGURATION MACROS
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//**************************************************************************
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> flower_sound_device
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class flower_sound_device : public device_t,
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public device_sound_interface,
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public device_memory_interface
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{
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public:
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// construction/destruction
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flower_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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// I/O operations
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DECLARE_WRITE8_MEMBER( lower_write );
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DECLARE_WRITE8_MEMBER( upper_write );
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// virtual DECLARE_ADDRESS_MAP(lower_map, 8);
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// virtual DECLARE_ADDRESS_MAP(upper_map, 8);
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DECLARE_WRITE8_MEMBER( frequency_w );
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DECLARE_WRITE8_MEMBER( repeat_w );
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DECLARE_WRITE8_MEMBER( unk_w );
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DECLARE_WRITE8_MEMBER( volume_w );
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DECLARE_WRITE8_MEMBER( start_address_w );
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DECLARE_WRITE8_MEMBER( sample_trigger_w );
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protected:
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// device-level overrides
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//virtual void device_validity_check(validity_checker &valid) const override;
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//virtual void device_add_mconfig(machine_config &config) override;
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virtual void device_start() override;
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virtual void device_reset() override;
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virtual space_config_vector memory_space_config() const override;
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virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
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address_space *m_iospace;
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private:
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const address_space_config m_io_space_config;
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sound_stream *m_stream;
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static constexpr unsigned MAX_VOICES = 8;
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static constexpr int samplerate = 48000;
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static constexpr int defgain = 48;
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std::unique_ptr<int16_t[]> m_mixer_table;
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int16_t *m_mixer_lookup;
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std::unique_ptr<short[]> m_mixer_buffer;
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struct fl_sound_channel
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{
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uint8_t start_nibbles[6];
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uint8_t raw_frequency[4];
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uint32_t start_address;
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uint32_t position;
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uint16_t frequency;
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uint8_t volume;
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uint8_t volume_bank;
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uint8_t effect;
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bool enable;
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bool repeat;
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int channel_number;
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};
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/* data about the sound system */
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fl_sound_channel m_channel_list[MAX_VOICES];
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fl_sound_channel *m_last_channel;
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void make_mixer_table(int voices, int gain);
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const uint8_t *m_sample_rom;
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const uint8_t *m_volume_rom;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(FLOWER_CUSTOM, flower_sound_device)
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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#endif // MAME_MACHINE_FLOWER_H
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@ -81,7 +81,7 @@ CHIP # POSITION TYPE
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "machine/gen_latch.h"
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#include "audio/wiping.h"
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#include "audio/flower.h"
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#include "screen.h"
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#include "speaker.h"
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@ -359,9 +359,8 @@ static ADDRESS_MAP_START( audio_map, AS_PROGRAM, 8, flower_state )
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AM_RANGE(0x4000, 0x4000) AM_WRITENOP // audio irq related (0 at start, 1 at end)
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AM_RANGE(0x4001, 0x4001) AM_WRITE(audio_nmi_mask_w)
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AM_RANGE(0x6000, 0x6000) AM_DEVREAD("soundlatch", generic_latch_8_device, read)
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// TODO: wrong for this
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AM_RANGE(0x8000, 0x803f) AM_DEVWRITE("wiping1", wiping_sound_device, sound_w)
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AM_RANGE(0xa000, 0xa03f) AM_DEVWRITE("wiping2", wiping_sound_device, sound_w)
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AM_RANGE(0x8000, 0x803f) AM_DEVWRITE("flower", flower_sound_device, lower_write)
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AM_RANGE(0xa000, 0xa03f) AM_DEVWRITE("flower", flower_sound_device, upper_write)
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AM_RANGE(0xc000, 0xc7ff) AM_RAM
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ADDRESS_MAP_END
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@ -515,10 +514,7 @@ static MACHINE_CONFIG_START( flower )
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MCFG_SPEAKER_STANDARD_MONO("mono")
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MCFG_SOUND_ADD("wiping1", WIPING, 0)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
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MCFG_SOUND_ADD("wiping2", WIPING, 0)
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MCFG_SOUND_ADD("flower", FLOWER_CUSTOM, 0)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
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MACHINE_CONFIG_END
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@ -551,7 +547,7 @@ ROM_START( flower ) /* Komax version */
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ROM_REGION( 0x8000, "samples", 0 )
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ROM_LOAD( "4.12a", 0x0000, 0x8000, CRC(851ed9fd) SHA1(5dc048b612e45da529502bf33d968737a7b0a646) ) /* 8-bit samples */
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ROM_REGION( 0x4000, "soundproms", 0 )
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ROM_REGION( 0x4000, "soundvol", 0 )
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ROM_LOAD( "5.16a", 0x0000, 0x4000, CRC(42fa2853) SHA1(cc1e8b8231d6f27f48b05d59390e93ea1c1c0e4c) ) /* volume tables? */
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ROM_REGION( 0x300, "proms", 0 ) /* RGB proms */
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@ -594,7 +590,7 @@ ROM_START( flowerj ) /* Sega/Alpha version. Sega game number 834-5998 */
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ROM_REGION( 0x8000, "samples", 0 )
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ROM_LOAD( "4.12a", 0x0000, 0x8000, CRC(851ed9fd) SHA1(5dc048b612e45da529502bf33d968737a7b0a646) ) /* 8-bit samples */
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ROM_REGION( 0x4000, "soundproms", 0 )
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ROM_REGION( 0x4000, "soundvol", 0 )
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ROM_LOAD( "5.16a", 0x0000, 0x4000, CRC(42fa2853) SHA1(cc1e8b8231d6f27f48b05d59390e93ea1c1c0e4c) ) /* volume tables? */
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ROM_REGION( 0x300, "proms", 0 ) /* RGB proms */
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@ -610,5 +606,5 @@ ROM_START( flowerj ) /* Sega/Alpha version. Sega game number 834-5998 */
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ROM_END
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GAME( 1986, flower, 0, flower, flower, flower_state, 0, ROT0, "Clarue (Komax license)", "Flower (US)", MACHINE_NO_SOUND|MACHINE_IMPERFECT_GRAPHICS|MACHINE_NO_COCKTAIL )
|
||||
GAME( 1986, flowerj, flower, flower, flower, flower_state, 0, ROT0, "Clarue (Sega / Alpha Denshi Co. license)", "Flower (Japan)", MACHINE_NO_SOUND|MACHINE_IMPERFECT_GRAPHICS|MACHINE_NO_COCKTAIL )
|
||||
GAME( 1986, flower, 0, flower, flower, flower_state, 0, ROT0, "Clarue (Komax license)", "Flower (US)", MACHINE_IMPERFECT_SOUND|MACHINE_IMPERFECT_GRAPHICS|MACHINE_NO_COCKTAIL )
|
||||
GAME( 1986, flowerj, flower, flower, flower, flower_state, 0, ROT0, "Clarue (Sega / Alpha Denshi Co. license)", "Flower (Japan)", MACHINE_IMPERFECT_SOUND|MACHINE_IMPERFECT_GRAPHICS|MACHINE_NO_COCKTAIL )
|
||||
|
||||
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Reference in New Issue
Block a user